This issue occurs if the original version of Age of Empires III is not installed on your computer.

Age of Empires III: The War Chiefs and Age of Empires III: The Asian Dynasties are expansions, not full products. To install either or both of the expansions, your computer must also have the original version of Age of Empires III installed.

To resolve this issue, you must install Age of Empires III. If you already own a version of the original Age of Empires III game, please insert the CD or DVD into your computer’s disk drive, and follow the installation instructions.

To purchase Age of Empires III, visit the following Microsoft Web site: